package cn.edu.scau.cmi.wuyihan.exercise5;

public class Tixing {
     double above,bottom,height;
     Tixing(double a,double b,double h){
    	 above=a;
    	 bottom=b;
    	 height=h;
     }
     double getArea() {
    	 return  (above+bottom)*height/2;
     }
}
